I basically do not do social media, as a personal choice, and because of obvious security and privacy concerns.
If you just want a venue to join family members together for discussion... ????
I have set up invite only / private Google "groups" where anyone who is invited into the group by you, can read / write to and from all other participants.
It is easy communication with no social exposure ( as far as any online event can be "no social exposure" ) and is kind of like a private version of this forum.
The reason a lotta folks choose to reside here is, that while this is a highly searched forum, it is NOT a FaceBook / Snapchat / Instagram / Twitter open invitation to have your personal information exposed without your control or permission. Join here with a username and share what you wish .. or NOT ! BUTT if you never disclose sensitive private personal information, in general, nobody who searches here would know it is "you" unless you tell them.
Just some random thoughts from someone who Mods / Admins 3 online forums and has had epic battles with FaceBook and similar sites
and just FYI ... CaringBridge does use its memberlist to "solicit" funding from folks. It is not GoFundMe, BUTT I have received numerous "donation" requests over the years, either from individual member accounts or someone ostensibly soliciting for a member.
JMO and I am probably a bit more cynical and obstreperous than the usual CRC caregiver / survivor
Cheers and best wishes